Boston Marathon logo
BOSTON MARATHON 2025

Sam Gray

Bib: 4919•M

NC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 19%
Gender (Male)
#0 / 16105
Top 30%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:00
Rank: #5967
Start → 5K
21:00 | 6:46/mi
10K· 6.21 mi
41:39
Rank: #5379 (+588)
5K → 10K
20:39 | 6:39/mi
15K· 9.32 mi
1:02:18
Rank: #5093 (+286)
10K → 15K
20:39 | 6:39/mi
20K· 12.43 mi
1:22:58
Rank: #4783 (+310)
15K → 20K
20:40 | 6:39/mi
Half· 13.11 mi
1:27:26
Rank: #4730 (+53)
20K → Half
4:28 | 6:33/mi
25K· 15.53 mi
1:43:44
Rank: #4599 (+131)
Half → 25K
16:18 | 6:43/mi
30K· 18.64 mi
2:05:19
Rank: #4507 (+92)
25K → 30K
21:35 | 6:57/mi
20M
2:14:56
Rank: #4479 (+28)
30K → 20M
9:37 | 7:05/mi
21M
2:22:35
Rank: #4521 (-42)
20M → 21M
7:39 | 7:39/mi
35K· 21.75 mi
2:27:49
Rank: #4530 (-9)
21M → 35K
5:14 | 7:00/mi
23M
2:37:30
Rank: #4763 (-233)
35K → 23M
9:41 | 7:44/mi
24M
2:45:23
Rank: #5054 (-291)
23M → 24M
7:53 | 7:53/mi
40K· 24.85 mi
2:52:10
Rank: #5173 (-119)
24M → 40K
6:47 | 7:56/mi
25.2M
2:55:10
Rank: #5203 (-30)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:03:01
Rank: #5320 (-117)
25.2M → Finish
7:51 | 7:42/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:26
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:35:35
Pace7:17 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0421:006:4621:00
6:46
-
10K
6.21 mi10:46:4341:396:4220:39
6:39
-0:07
15K
9.32 mi11:07:221:02:186:4120:39
6:39
0:00
20K
12.43 mi11:28:021:22:586:4120:40
6:39
0:00
Half
13.11 mi11:32:301:27:266:404:28
6:33
-0:06
25K
15.53 mi11:48:481:43:446:4116:18
6:43
+0:10
30K
18.64 mi12:10:232:05:196:4321:35
6:57
+0:14
20M
20.00 mi12:20:002:14:566:459:37
7:05
+0:08
21M
21.00 mi12:27:392:22:356:477:39
7:39
+0:34
35K
21.75 mi12:32:532:27:496:485:14
7:00
-0:39
23M
23.00 mi12:42:342:37:306:519:41
7:44
+0:44
24M
24.00 mi12:50:272:45:236:537:53
7:53
+0:09
40K
24.85 mi12:57:142:52:106:566:47
7:56
+0:03
25.2M
25.20 mi13:00:142:55:106:573:00
8:42
+0:46
Finish
26.22 mi13:08:053:03:016:597:51
7:42
-1:00

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:33 /mi

Average Pace

6:59 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:26

36% of race

Time at Steady Pace

1:13:44

40% of race

Time at Slower Pace

42:51

23% of race

Average Pace: 6:59 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:26:0421:006:4621:00
6:46
#5967
10K
6.21 mi10:46:4341:396:4220:39
6:39
#5379
15K
9.32 mi11:07:221:02:186:4120:39
6:39
#5093
20K
12.43 mi11:28:021:22:586:4120:40
6:39
#4783
Half
13.11 mi11:32:301:27:266:404:28
6:33
#4730
25K
15.53 mi11:48:481:43:446:4116:18
6:43
#4599
30K
18.64 mi12:10:232:05:196:4321:35
6:57
#4507
20M
20.00 mi12:20:002:14:566:459:37
7:05
#4479
21M
21.00 mi12:27:392:22:356:477:39
7:39
#4521
35K
21.75 mi12:32:532:27:496:485:14
7:00
#4530
23M
23.00 mi12:42:342:37:306:519:41
7:44
#4763
24M
24.00 mi12:50:272:45:236:537:53
7:53
#5054
40K
24.85 mi12:57:142:52:106:566:47
7:56
#5173
25.2M
25.20 mi13:00:142:55:106:573:00
8:42
#5203
Finish
26.22 mi13:08:053:03:016:597:51
7:42
#5320
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5967548654864606(Top 16%)4310(Top 27%)4310(Top 76%)
10K6.21 mi3.10 mi5379+5884982+5044982+5044825(Top 17%)4508(Top 28%)4508(Top 80%)
15K9.32 mi3.11 mi5093+2864742+2404742+2404606(Top 16%)4310(Top 27%)4310(Top 76%)
20K12.43 mi3.11 mi4783+3104462+2804462+2804006(Top 14%)3761(Top 23%)3761(Top 67%)
Half13.11 mi0.68 mi4730+534414+484414+483921(Top 14%)3685(Top 23%)3685(Top 65%)
25K15.53 mi2.42 mi4599+1314293+1214293+1214276(Top 15%)3964(Top 25%)3964(Top 70%)
30K18.64 mi3.11 mi4507+924204+894204+894362(Top 15%)3993(Top 25%)3993(Top 71%)
20M20.00 mi1.36 mi4479+284165+394165+394509(Top 16%)4094(Top 25%)4094(Top 73%)
21M21.00 mi1.00 mi4521-424195-304195-305341(Top 19%)4612(Top 29%)4612(Top 82%)
35K21.75 mi0.75 mi4530-94197-24197-25247(Top 18%)4530(Top 28%)4530(Top 80%)
23M23.00 mi1.25 mi4763-2334381-1844381-1848059(Top 28%)6185(Top 38%)6185(Top 110%)
24M24.00 mi1.00 mi5054-2914617-2364617-23610385(Top 37%)7352(Top 46%)7352(Top 130%)
40K24.85 mi0.85 mi5173-1194704-874704-879639(Top 34%)6849(Top 43%)6849(Top 121%)
25.2M25.20 mi0.35 mi5203-304727-234727-239869(Top 35%)6846(Top 43%)6846(Top 121%)
Finish26.22 mi1.02 mi5320-1174805-784805-7810673(Top 38%)7328(Top 46%)7328(Top 130%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4606

Males

4310

M18-39

4310

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4825

Males

4508

M18-39

4508

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4606

Males

4310

M18-39

4310

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

4006

Males

3761

M18-39

3761

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3921

Males

3685

M18-39

3685

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4276

Males

3964

M18-39

3964

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4362

Males

3993

M18-39

3993

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4509

Males

4094

M18-39

4094

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5341

Males

4612

M18-39

4612

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5247

Males

4530

M18-39

4530

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

8059

Males

6185

M18-39

6185

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

10385

Males

7352

M18-39

7352

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9639

Males

6849

M18-39

6849

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9869

Males

6846

M18-39

6846

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10673

Males

7328

M18-39

7328

Passing Analysis

Category:
Athletes Passed
1967
Passed By
1320
Net Change
+647
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5967
5K → 10K61527+588#5967#5379
10K → 15K32943+286#5379#5093
15K → 20K32010+310#5093#4783
20K → Half596+53#4783#4730
Half → 25K16938+131#4730#4599
25K → 30K18896+92#4599#4507
30K → 20M8557+28#4507#4479
20M → 21M59101-42#4479#4521
21M → 35K4049-9#4521#4530
35K → 23M35268-233#4530#4763
23M → 24M14305-291#4763#5054
24M → 40K29148-119#5054#5173
40K → 25.2M838-30#5173#5203
25.2M → Finish17134-117#5203#5320
TOTALS19671320+647
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing